3d. Ux. Patterns For Large-Scale JavaScript Application Architecture. Today we're going to discuss an effective set of patterns for large-scale JavaScript application architecture. The material is based on my talk of the same name, last presented at LondonJS and inspired by previous work by Nicholas Zakas. Who am I and why am I writing about this topic? I'm currently a JavaScript and UI developer at AOL helping to plan and write the front-end architecture to our next generation of client-facing applications. As these applications are both complex and often require an architecture that is scalable and highly-reusable, it's one of my responsibilities to ensure the patterns used to implement such applications are as sustainable as possible. I also consider myself something of a design pattern enthusiast (although there are far more knowledgeable experts on this topic than I).
Can you summarize this article in 140 characters? In the event of you being short for time, here's the tweet-sized summary of this article: What exactly is a 'large' JavaScript application? The New Methodology. In the past few years there's been a blossoming of a new style of software methodology - referred to as agile methods. Alternatively characterized as an antidote to bureaucracy or a license to hack they've stirred up interest all over the software landscape. In this essay I explore the reasons for agile methods, focusing not so much on their weight but on their adaptive nature and their people-first orientation. Probably the most noticeable change to software process thinking in the last few years has been the appearance of the word 'agile'. We talk of agile software methods, of how to introduce agility into a development team, or of how to resist the impending storm of agilists determined to change well-established practices.
This new movement grew out of the efforts of various people who dealt with software process in the 1990s, found them wanting, and looked for a new approach to software process. This essay was originally part of this movement. From Nothing, to Monumental, to Agile . TRAFFIC WAVE EXPERIMENTS. Google C++ Style Guide. Definition: Streams are a replacement for printf() and scanf(). Pros: With streams, you do not need to know the type of the object you are printing. You do not have problems with format strings not matching the argument list. (Though with gcc, you do not have that problem with printf either.) Streams have automatic constructors and destructors that open and close the relevant files. Cons: Streams make it difficult to do functionality like pread().
Some formatting (particularly the common format string idiom %. *s) is difficult if not impossible to do efficiently using streams without using printf-like hacks. Decision: Do not use streams, except where required by a logging interface. There are various pros and cons to using streams, but in this case, as in many other cases, consistency trumps the debate. Extended Discussion There has been debate on this issue, so this explains the reasoning in greater depth. Cout << this; // Prints the address cout << *this; // Prints the contents. Understanding Model-View-Controller. May 5, 2008 Like everything else in software engineering, it seems, the concept of Model-View-Controller was originally invented by Smalltalk programmers. More specifically, it was invented by one Smalltalk programmer, Trygve Reenskaug. Trygve maintains a page that explains the history of MVC in his own words. He arrives at these definitions in a paper he published on December 10th, 1979: Models Models represent knowledge.
A model could be a single object (rather uninteresting), or it could be some structure of objects. There should be a one-to-one correspondence between the model and its parts on the one hand, and the represented world as perceived by the owner of the model on the other hand. It may seem like we're deep in Architecture Astronaut territory now, but bear with me. This ubiquitous trifecta represents MVC almost perfectly. Model The HTML is the "skeleton" of bedrock content.
Just take a gander at the project layout in a sample ASP.NET MVC project : Posted by Jeff Atwood Tim No!